基于Web和OPC技术的油田联合站集输实时监控系统的设计

719200710167121819(2007)1925081204ScienceTechnologyandEngineeringVol.7No.19Oct.2007Z2007Oct.Tech.Engng.WebOPC((),257061)WebOPCOPC,,WebOPCASPTP273;A200761:(1976),,,,,,:E2mail:[e-mail],Internet,B/S,Web,(DCS),,,,,,,,OPC,,OPC,,DCS[1]11.1OPCOPC(OLEforprocesscontrol)Mi2crosoftOLE/COM,[2]OPC,COMOPC/(C/S),OPCOPCI/OOPC,,1.2OPCOPCOPC(OPCServer)OPC(OPCClient)OPCOPC,OPCOPCOPC1OPC(Server)(Group)(Item)OPCServer:OPC,,OPCGroup;OPCGroup:OPC1OPCItemGroup,OPCItemOPCItem:ItemOPC,SCADADCS,SCADADCS1.3,OPCJX300JXOPCServerOPC(OPCDA),DCS,DCSOPC,OPC,OPCServerOPC,OPCDCS,OPCServer,,2DCS,,OPC,OPC,OPCServer,ADO(ActiveXDataObject)DMO(DataManagementObject),,WebB/S,/Web,OPC,Web[3]22OPCOPCJX-300XOPC,JX-300DCS,OPC,OPCDCS,OPC,,I/ODCS,,DCSOPCVB:F_TagName=OPCView.txtDCS,DCS;SetServer=NewOPCServerOPC;Servername=SUPCON.JXServer.1;Server.ConnectServername,OPC;OPCGroup;Server.OPCGroups.DefaultGroupUpdateRate=2500OPC2Group;28057SetGroup=Server.OPCGroups.Add(WJX)OPCGroup,WJX;Group.OPCItems.ValidateNum_Tag,names,Errors,DataTypes,accessPaths;Group.OPCItems.AddItemsNum_Tag,names,ClientHandles,serverHandles,Errors,DataTypes,access2PathsOPCItems,;Num_TagGroup.SyncReadOPCCache,Num_Tag,serverHandles,Values,Errors,Qualities,TimeStamps’GroupOPC,ValuesOPC3WebServicesOPC,OPC,Web,[4],,ASP,,,,OPC:headmetaname=GENERATORcontent=MicrosoftFrontPage6.0metaHTTP-EQUIV=REFRESHCONTENT=55,;title/title,;/headbody!--includefile=conn.asp-;%dimrecsql=select3fromdatasetrec=server.createobject(adodb.recordset)rec.ActiveConnection=newconn1rec.CursorType=1rec.LockType=1rec.Source=sqlrec.openrec.movelast%scriptlanguage=vbscript!--subwindow_onload()onerrorresumenexttop.b2sz.T1.value=%=formatnumber(rec(35),0)%1TT503,b2sz.asp;;endsub/script%rec.closenewconn.close%3,JavaApplet,,Web4OPCWeb,380519,:WebOPC3Web,,,,1..:,20032,,.OPC.,2000;27(4):27303,.WebOPC,,2005;20(1):61644.ASPWEB,,2001;4:3134ResearchandDesignofReal2timeSupervisorySystemBasedonWebandOPCinOilfieldUnitedStationWULi2qing,LOUSheng2nan,LILi2gang(InformationandControlEngineeringCollege,ChinaUniversityofPetroleum,Dongying257061,P.R.China)[Abstract]Adesigningmethoddistributedreal2timeproductionsupervisoryispresented.TheOPCtechniqueanditsapplicationintheDCSofoilfieldunitedstationareintroduced,andtheseamlessconnectionbetweentheap2plicationandplantandtheWebdistributionofproductiondataarerealized.[Keywords]OPCDCSASPoilfieldunitedstation(5080)DesignofMulti2ScheduledMechanismEmbeddedSystemBaseduC/OS2IIWANGXi2bing,LIYin2guo(InstituteofAutomotiveElectronicandEmbeddedSystem,ChongqingUniversityofPostsandTelecoms.,Chongqing400065,P.R.China)[Abstract]uC/OS2IIisamulti2taskrealtimekernel,havingportable,scalableandwhichtaskscanbepreemp2ted.BasedonuC/OS2IIstasksmanaging,anoptionalschedulemechanismembeddedsystemisdesignedwhichisprovidedwithpreemptive,non2preemptiveandmix2preemptive,eventcontrolblockisaddedintotasktorealizesyn2chronization,flexibilityandrealtimeperformanceofembeddedsystemarefurtheradvanced.[Keywords]uC/OS2IItaskpreemptiverealtimeperformance48057